djvu-text-page.h File Reference

#include "ev-document.h"
#include <string.h>
#include <glib.h>
#include <libdjvu/miniexp.h>

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Data Structures
struct	_DjvuTextPage
struct	_DjvuTextLink

Typedefs
typedef struct _DjvuTextPage	DjvuTextPage
typedef struct _DjvuTextLink	DjvuTextLink

Enumerations
enum	DjvuSelectionType { DJVU_SELECTION_TEXT, DJVU_SELECTION_BOX }

Functions
GList *	djvu_text_page_get_selection_region (DjvuTextPage *page, EvRectangle *rectangle)
char *	djvu_text_page_copy (DjvuTextPage *page, EvRectangle *rectangle)
void	djvu_text_page_index_text (DjvuTextPage *page, gboolean case_sensitive)
void	djvu_text_page_search (DjvuTextPage *page, const char *text)
DjvuTextPage *	djvu_text_page_new (miniexp_t text)
void	djvu_text_page_free (DjvuTextPage *page)

Typedef Documentation

typedef struct _DjvuTextLink DjvuTextLink

Definition at line 30 of file djvu-text-page.h.

typedef struct _DjvuTextPage DjvuTextPage

Definition at line 29 of file djvu-text-page.h.

Enumeration Type Documentation

enum DjvuSelectionType

Enumerator
DJVU_SELECTION_TEXT
DJVU_SELECTION_BOX

Definition at line 49 of file djvu-text-page.h.

             {
    DJVU_SELECTION_TEXT,
    DJVU_SELECTION_BOX,
} DjvuSelectionType;

Function Documentation

char* djvu_text_page_copy	(	DjvuTextPage *	page,
		EvRectangle *	rectangle
	)

Definition at line 234 of file djvu-text-page.c.

{
    char* text;
    
    page->start = miniexp_nil;
    page->end = miniexp_nil;
    djvu_text_page_limits (page, page->text_structure, rectangle);
    djvu_text_page_selection (DJVU_SELECTION_TEXT, page,
                              page->text_structure, 0);
    
    /* Do not free the string */      
    text = page->text;
    page->text = NULL;
    
    return text;
}

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void djvu_text_page_free

(

DjvuTextPage *

page)

Definition at line 515 of file djvu-text-page.c.

{
    g_free (page->text);
    g_array_free (page->links, TRUE);
    g_free (page);
}

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GList* djvu_text_page_get_selection_region	(	DjvuTextPage *	page,
		EvRectangle *	rectangle
	)

Definition at line 218 of file djvu-text-page.c.

{
    page->start = miniexp_nil;
    page->end = miniexp_nil;

    /* Get page->start and page->end filled from selection rectangle */
    djvu_text_page_limits (page, page->text_structure, rectangle);
    /* Fills page->results with the bouding boxes */
    djvu_text_page_selection (DJVU_SELECTION_BOX,
                              page, page->text_structure, 0);

    return g_list_reverse (page->results);
}

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void djvu_text_page_index_text	(	DjvuTextPage *	page,
		gboolean	case_sensitive
	)

Definition at line 480 of file djvu-text-page.c.

{
    djvu_text_page_append_text (page, page->text_structure, 
                    case_sensitive, FALSE); 
}

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DjvuTextPage* djvu_text_page_new

(

miniexp_t

text)

djvu_text_page_new: : S-expression of the page text

Creates a new page to search.

Returns: new DjvuTextPage instance

Definition at line 496 of file djvu-text-page.c.

{
    DjvuTextPage *page;

    page = g_new0 (DjvuTextPage, 1);
    page->links = g_array_new (FALSE, FALSE, sizeof (DjvuTextLink));
    page->char_symbol = miniexp_symbol ("char");
    page->word_symbol = miniexp_symbol ("word");
    page->text_structure = text;
    return page;
}

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void djvu_text_page_search	(	DjvuTextPage *	page,
		const char *	text
	)

Definition at line 448 of file djvu-text-page.c.

{
    char *haystack = page->text;
    int search_len;
    EvRectangle *result;
    if (page->links->len == 0)
        return;

    search_len = strlen (text);
    while ((haystack = strstr (haystack, text)) != NULL) {
        int start_p = haystack - page->text;
        miniexp_t start = djvu_text_page_position (page, start_p);
        int end_p = start_p + search_len - 1;
        miniexp_t end = djvu_text_page_position (page, end_p);
        result = djvu_text_page_box (page, start, end);
        g_assert (result);
        page->results = g_list_prepend (page->results, result);
        haystack = haystack + search_len;
    }
    page->results = g_list_reverse (page->results);
}

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